Parse glibc header file

[Ángel González]

 Davide Italiano wrote:
> I'm running in the problem that gcc -E doesn't remove things like
> __wur or __THROW and I managed it using sed removing one by one the
> patterns but I was looking for a more general way/
Remove all patterns beginning by a double underscore?
Identifiers beginning with an underscore are reserved for the
compiler/library
so (theoretically) a program shouldn't use them.